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What's the pronunciation of drinking
In addition to the third sound, drink can also read the fourth sound, meaning to drink water to animals, such as drinking horses, drinking cattle
What's the pronunciation of Jiezi?
Knot, Pinyin: Ji é Ji
1、jié .
① Tie, string: ~ net. ~ rope. ~ tie
② A knot made of strips: a butterfly
③ Gather, unite: ~ Jing. ~ Zhi. ~ Meng. ~ Jiao. ~ Ji. ~ he. ~ Dang Yingying
④ End, end: ~ account. ~ Bureau. ~ case. ~ result. ~ theory. ~ end
⑤ A kind of document to guarantee responsibility: with ~
2、jiē .
Plant fruit: flowering - fruiting - fruiting
What is the quotient of five and one tenth divided by 2.4 minus one and four fifths?
4.5
The limit x approaches 0, (x-sinx) / SiNx ^ 3
First use the equivalent infinitesimal, and then use the second-order law
Limit x approaches 0, (x-sinx) / SiNx ^ 3 = limit x approaches 0, (x-sinx) / x ^ 3 = limit x approaches 0, (1-cosx) / (3x ^ 2)
=The limit x approaches 0, SiNx / (6x) = 1 / 6
92.8 △ 8 △ 1.2518.9-18.9 △ 1.4 [(8.1-5.6) × 0.9-1] × 0.48.25 × 4.08 + 0.75 × 4.08 + 4.08
①92.8÷8÷1.25=92.8÷（8×1.25）=92.8÷10=9.28②18.9-18.9÷1.4=18.9-18.9×57=18.9-13.5=5.4③[（8.1-5.6）×0.9-1]×0.4=[2.5×0.9-1]×0.4=[2.25-1]×0.4=1.25×0.4=0.5④8.25×4.08+0.75×4.08+4.08=（8.25+...
When solving the equations 5x-3y = - 6,5x + 3Y = 14 by the method of addition and subtraction, if the value of X is obtained first, the two equations should be separated______ If we find the value of Y first,
When solving the equations 5x-3y = - 6,5x + 3Y = 14 by the method of addition and subtraction, if the value of X is obtained first, the two equations should be separated______ If we find the value of Y first, we should use two equations______ The solutions of the equations are________ .
Solution
When using the method of addition and subtraction to solve the system of equations 5x-3y = - 6, 5x + 3Y = 14, if the value of X is calculated first, the two equations should be added; if the value of Y is calculated first, the two equations should be subtracted, and the solution of the system of equations is_ y=10/3,x=4/5.
Simple calculation of 630 △ 45 and 125 × 96
630÷45=630÷90×2=7×2=14.
125 × 96 = 125 × 8 × 12 = 1000 × 12 = 12000!
The line L passing through the point m (1,2) divides the circle (X-2) 2 + y2 = 9 into two arcs. When the inferior arc is the shortest, the equation of line L is ()
A. x=1B. y=1C. x-y+1=0D. x-2y+3=0
Let the center of the circle be o, then o (2,0), х Kom = 2 − 01 − 2 = - 2. The slope of х line L is k = 12, and the equation of х L is Y-2 = 12 (x-1), that is, x-2y + 3 = 0. So D is chosen
How to divide X-5 by 2 = 3x-2 / 15
(x-5)/2=(3x-2)/15
Cross multiplication: 15 * (X-5) = 2 * (3x-2)
15x-75=6x-4
9x=71
x=71/9
Let a ∈ R, given p: 2x ^ 2-3x + 1 ≤ 0, Q: XA + 2, if P is not a necessary and sufficient condition of Q, then the value range of real number a is
Non P: 2x ^ 2-3x + 1 > 0, x > 1 or x0, x > A + 1 or X
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